CN107759981A - A kind of preparation method of high-temperature-resistant antistatic type mould release membrance - Google Patents
A kind of preparation method of high-temperature-resistant antistatic type mould release membrance Download PDFInfo
- Publication number
- CN107759981A CN107759981A CN201711357925.1A CN201711357925A CN107759981A CN 107759981 A CN107759981 A CN 107759981A CN 201711357925 A CN201711357925 A CN 201711357925A CN 107759981 A CN107759981 A CN 107759981A
- Authority
- CN
- China
- Prior art keywords
- powdered graphite
- mould release
- temperature
- release membrance
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2479/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
- C08J2479/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2479/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
- C08J2479/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2479/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to membrane material preparing technical field, and in particular to a kind of preparation method of high-temperature-resistant antistatic type mould release membrance.The present invention is using modified epoxy as matrix,Self-control carries silver-colored powdered graphite and polyethylene terephthalate as accelerator,And it is aided with dimethicone and ammonium persulfate etc. and high-temperature-resistant antistatic type mould release membrance is prepared,Epoxy resin is modified first,Triazine ring structure is easily formed after bimaleimide resin and cyanate ester resin are heated,Enhance the resistance to elevated temperatures of epoxy resin,Due to containing silica in Ludox,Contact of the oxygen with epoxy resin in air can be effectively isolated,So as to improve the resistance to elevated temperatures of mould release membrance,Sensitized treatment is carried out to powdered graphite followed by stannous chloride,Silver ion reduction is induced to generate silver-colored simple substance,And it is adsorbed in powdered graphite surface,Improve the static electricity resistance of mould release membrance,Continuously add polyethylene terephthalate,Further improve the static electricity resistance of mould release membrance,It is with a wide range of applications.
Description
Technical field
The present invention relates to membrane material preparing technical field, and in particular to a kind of preparation side of high-temperature-resistant antistatic type mould release membrance
Method.
Background technology
After mould release membrance refers to that there is the film of separation property, mould release membrance to be contacted under limited conditions with specific material on surface
Without viscosity, or there is slight viscosity.Mould release membrance, also known as stripping film, barrier film, seperation film, adhesive block film, antiadhesion barrier etc..
Mould release membrance includes base material film and release layer.Base material film is more using paper, plastic sheeting, and release layer is mainly by silicon mixture
Form.Under normal circumstances in order to increase the off-type force of plastic sheeting, plastic sheeting can be done to plasma treatment, or apply fluorine processing,
Or silicon mould release is applied on the top layer of film material, such as PET, PE, OPP.It is allowed for a variety of organic pressure sensitive adhesives
(Such as the pressure sensitive adhesive of hot melt adhesive, acrylic glue and rubber series)Extremely light and stable off-type force can be shown.According to needed for difference
Mould release membrance off-type force, the viscosity of isolated product glue is different, the corresponding adjustment of off-type force, is allowed to reach when peeling off extremely gently and stably
Off-type force.
At present, the mould release membrance of in the market is used for the display equipment such as semiconductor components and devices, liquid crystal panel, PDP and organic EL
Diaphragm, or for adhesive sticker, adhesive tape, pain relieving ointment and plaster for curing rheumatism etc. the back of the body paste, for prevent the diaphragm of above-mentioned article or
The above-mentioned article of person is voluntarily sticked together.Generally, mould release membrance, which is attached in respective material, plays protective effect early stage.
Gradually appear with the extensive use of China's mould release membrance, the shortcomings that many mould release membrances, coated silicone release agent
Mould release membrance, there is good peeling force, heat resistance and stability, but substantial amounts of solvent is easily remained in the product after processing,
Easily cause environmental pollution, harm health;The resistance of mould release membrance is larger, and by friction in process, its surface easily produces quiet
Electricity, dust and other debris in air are adsorbed, it is attractive in appearance so as to influence product;Viscous volume, residual bonding occurs in use for a long time
The low phenomenon of rate.
Therefore, developing a kind of mould release membrance that can solve the problem that above-mentioned performance issue is highly desirable.
The content of the invention
The technical problems to be solved by the invention:Heat-resisting quantity difference and static electricity resistance be present for current common mould release membrance
Difference, the defects of can not meet market demands, there is provided a kind of preparation method of high-temperature-resistant antistatic type mould release membrance.
In order to solve the above technical problems, the present invention is using technical scheme as described below:
A kind of preparation method of high-temperature-resistant antistatic type mould release membrance, it is characterised in that specifically preparation process is:
(1)Deionized water, tetraethyl orthosilicate and absolute ethyl alcohol are mixed and is placed in beaker and stirs, obtains stirring liquid, then to beaker
The middle hydrochloric acid that agitated liquid product 3% is added dropwise, continues insulation and mixes reaction, obtain reaction solution, reaction solution is put into ultrasonic wave shakes
Sonic oscillation in instrument is swung, it is still aging, discharging, obtain from preparing silicon collosol;
(2)Bisphenol A type epoxy resin, bimaleimide resin and cyanate ester resin are mixed, heat temperature raising, mixed
Resin, then by hybrid resin and from preparing silicon collosol, continue insulation and mix, obtain modified epoxy;
(3)80 mesh sieves are crossed after weighing the grinding of 24~32g graphite, collect sieving powdered graphite, by sieving powdered graphite, hydrochloric acid and chlorine
Change stannous and mix reaction, obtain being sensitized powdered graphite, then sensitization powdered graphite, silver nitrate solution and ammoniacal liquor are mixed and are placed in
Stir-activating in beaker, obtain activating powdered graphite, continue to add activation powdered graphite quality 3% into activation powdered graphite
Glucose solution mixes, and filters off except filtrate, dries discharging, obtains self-control and carries silver-colored powdered graphite;
(4)Count in parts by weight, weigh 30~40 parts of modified epoxies respectively, 12~16 parts of self-controls carry silver-colored powdered graphite, 6~
8 parts of polyethylene terephthalates and 4~6 parts of dimethicone mixing are placed in mixer and stirred, then add 2~4 parts of mistakes
Ammonium sulfate and 1~3 part of absolute ethyl alcohol, continue insulated and stirred, obtain stirring slurry, stirring slurry is poured into double screw extruder
Extrusion forming, cooling, traction winding, discharging, produce high-temperature-resistant antistatic type mould release membrance.
Step(1)The volume ratio of described deionized water, tetraethyl orthosilicate and absolute ethyl alcohol is 1:4:2, whipping temp is
35~45 DEG C, mixing time is 10~12min, and the mass fraction of hydrochloric acid is 20%, and the continuation stirring reaction time is 18~24min,
The sonic oscillation time is 20~30min, and digestion time is 1~2 day.
Step(2)The mass ratio of described bisphenol A type epoxy resin, bimaleimide resin and cyanate ester resin is 3:
1:1, mixing time is 16~20min, and heat temperature raising temperature is 120~160 DEG C, hybrid resin and the mass ratio from preparing silicon collosol
For 2:1, continuation mixing time is 45~60min.
Step(3)Described milling time is 10~12min, sieving powdered graphite, the hydrochloric acid and chlorine that mass fraction is 30%
The mass ratio for changing stannous is 4:1:2, the stirring reaction time is 6~8min, sensitization powdered graphite, the nitric acid that mass fraction is 15%
The mass ratio for the ammoniacal liquor that silver-colored solution and mass fraction are 20% is 1:2:2, the stir-activating time is 24~32min, and whipping temp is
30~40 DEG C, mixing time is 1~2h.
Step(4)Described whipping temp is 65~75 DEG C, and speed of agitator is 120~160r/min, mixing time 20
~30min, continuation mixing time are 45~60min, and extrusion temperature is 120~160 DEG C, and squeeze pressure is 0.3~0.5MPa.
Compared with other method, advantageous effects are the present invention:
For the present invention using modified epoxy as matrix, self-control carries silver-colored powdered graphite and polyethylene terephthalate as promotion
Agent, and be aided with dimethicone and ammonium persulfate etc. and high-temperature-resistant antistatic type mould release membrance is prepared, carry out acyl first with span
Imide resin, cyanate ester resin and epoxy resin is modified from preparing silicon collosol, due to bimaleimide resin and cyanic acid
Ester resin all has heat resistance, and both resins solidify in matrix surface under heated or catalyst action and easily form triazine
Ring structure, make solidfied material that there is good heat resistance, enhance the resistance to elevated temperatures of epoxy resin, be advantageous to the resistance to height of mould release membrance
Warm nature can be improved, and Ludox be prepared using teos hydrolysis method, due to containing silica in Ludox, in matrix
Surface forms rigid structure, contact of the temperature in the external world with epoxy resin can be effectively isolated, so as to improve the resistance to height of mould release membrance
Warm nature energy, by the materials such as tetraethyl orthosilicate form from preparing silicon collosol, there is good electric conductivity, can be mould release membrance surface
Electrostatic is taken away, and reaches the effect for driving away electrostatic, so as to improve the static electricity resistance of mould release membrance, followed by stannous chloride to graphite powder
End carries out sensitized treatment, makes powdered graphite Surface Creation tin hydroxide colloid, plays a part of crystal seed, induction silver ion reduction life
Into silver-colored simple substance, and powdered graphite surface is adsorbed in, forms particulate, wherein the electrical conductivity of silver is much larger than graphite, make matrix surface
Resistance is decreased obviously, and is improved the static electricity resistance of mould release membrance again, is continuously added the poly terephthalic acid second two with rub resistance
Alcohol ester, in preparation process, matrix rub resistance is assigned, its surface is not produced electrostatic, further improve the anti-quiet of mould release membrance
Electrically, it is with a wide range of applications.
Embodiment
It is 1 by volume:4:2 are placed in the mixing of deionized water, tetraethyl orthosilicate and absolute ethyl alcohol in beaker, are in temperature
10~12min is stirred at 35~45 DEG C, obtains stirring liquid, then the mass fraction of dropwise addition agitated liquid product 3% is 20% into beaker
Hydrochloric acid, continue insulation mix reaction 18~24min, obtain reaction solution, by reaction solution be put into supersonic oscillations instrument surpass
20~30min of sound oscillation, still aging 1~2 day, discharging, is obtained from preparing silicon collosol;It is 3 in mass ratio:1:1 by bisphenol-A type ring
Oxygen tree fat, bimaleimide resin and cyanate ester resin mix 16~20min, are heated to 120~160 DEG C, obtain
It is 2 in mass ratio to hybrid resin, then by hybrid resin and from preparing silicon collosol:1, continue insulation and mix 45~60min, obtain
To modified epoxy;Weigh after 24~32g graphite grinds 10~12min and cross 80 mesh sieves, sieving powdered graphite is collected, by quality
Than for 4:1:The powdered graphite that sieves, the hydrochloric acid that mass fraction is 30% and stannous chloride are mixed 6~8min of reaction by 2, are obtained
It is sensitized powdered graphite, then the ammoniacal liquor that powdered graphite will be sensitized, the silver nitrate solution that mass fraction is 15% and mass fraction are 20%
It is 1 in mass ratio:2:2 mixing are placed in 24~32min of stir-activating in beaker, obtain activating powdered graphite, continue to living fossil
The mass fraction that activation powdered graphite quality 3% is added in ink powder end is 10% glucose solution, in the case where temperature is 30~40 DEG C
1~2h is mixed, filters off except filtrate, dries discharging, self-control is obtained and carries silver-colored powdered graphite;Count, claim respectively in parts by weight
30~40 parts of modified epoxies, 12~16 parts of self-controls are taken to carry silver-colored powdered graphite, 6~8 parts of polyethylene terephthalates and 4
~6 parts of dimethicone mixing are placed in mixer, under conditions of temperature is 65~75 DEG C, rotating speed is 120~160r/min
20~30min is stirred, then adds 2~4 parts of ammonium persulfates and 1~3 part of absolute ethyl alcohol, continues 45~60min of insulated and stirred, obtains
Slurry is stirred, stirring slurry is poured into double screw extruder, in the case where temperature is 120~160 DEG C, pressure is 0.3~0.5MPa
Extrusion forming, cooling, traction winding, discharging, produce high-temperature-resistant antistatic type mould release membrance.
Example 1
It is 1 by volume:4:2 are placed in the mixing of deionized water, tetraethyl orthosilicate and absolute ethyl alcohol in beaker, are 35 DEG C in temperature
Lower stirring 10min, obtain stirring liquid, then the hydrochloric acid that the mass fraction of dropwise addition agitated liquid product 3% is 20% into beaker, continue to protect
Temperature mixes reaction 18min, obtains reaction solution, and reaction solution is put into sonic oscillation 20min in supersonic oscillations instrument, stood old
Change 1 day, discharging, obtain from preparing silicon collosol;It is 3 in mass ratio:1:1 by bisphenol A type epoxy resin, bimaleimide resin and
Cyanate ester resin mixes 16min, is heated to 120 DEG C, obtains hybrid resin, then by hybrid resin and from preparing silicon collosol
It is 2 in mass ratio:1, continue insulation and mix 45min, obtain modified epoxy;Weigh 24g graphite and grind mistake after 10min
80 mesh sieves, sieving powdered graphite is collected, is in mass ratio 4:1:2 by sieve powdered graphite, mass fraction be 30% hydrochloric acid and chlorine
Change stannous and mix reaction 6min, obtain being sensitized powdered graphite, then the nitric acid that powdered graphite will be sensitized, mass fraction is 15%
The ammoniacal liquor that silver-colored solution and mass fraction are 20% is 1 in mass ratio:2:2 mixing are placed in stir-activating 24min in beaker, are lived
Graphite powder, the glucose that the mass fraction for continuing to add activation powdered graphite quality 3% into activation powdered graphite is 10%
Solution, 1h is mixed at being 30 DEG C in temperature, filters off except filtrate, dries discharging, self-control is obtained and carries silver-colored powdered graphite;By weight
Number meter is measured, weighs 30 parts of modified epoxies respectively, 12 parts of self-controls carry silver-colored powdered graphite, 6 parts of polyethylene terephthalates
Ester and 4 parts of dimethicone mixing are placed in mixer, are stirred under conditions of temperature is 65 DEG C, rotating speed is 120r/min
20min, then 2 parts of ammonium persulfates and 1 part of absolute ethyl alcohol are added, continue insulated and stirred 45min, obtain stirring slurry, by stirring slurry
Material is poured into double screw extruder, the extrusion forming in the case where temperature is 120 DEG C, pressure is 0.3MPa, cooling, traction winding, discharging,
Produce high-temperature-resistant antistatic type mould release membrance.
Example 2
It is 1 by volume:4:2 are placed in the mixing of deionized water, tetraethyl orthosilicate and absolute ethyl alcohol in beaker, are 40 DEG C in temperature
Lower stirring 11min, obtain stirring liquid, then the hydrochloric acid that the mass fraction of dropwise addition agitated liquid product 3% is 20% into beaker, continue to protect
Temperature mixes reaction 22min, obtains reaction solution, and reaction solution is put into sonic oscillation 25min in supersonic oscillations instrument, stood old
Change 1.5 days, discharging, obtain from preparing silicon collosol;It is 3 in mass ratio:1:1 by bisphenol A type epoxy resin, bimaleimide resin
18min is mixed with cyanate ester resin, is heated to 140 DEG C, obtains hybrid resin, then hybrid resin and self-control silicon is molten
Glue is 2 in mass ratio:1, continue insulation and mix 55min, obtain modified epoxy;After weighing 28g graphite grinding 11min
80 mesh sieves are crossed, sieving powdered graphite is collected, is in mass ratio 4:1:2 by sieve powdered graphite, mass fraction be 30% hydrochloric acid and
Stannous chloride mixes reaction 7min, obtains being sensitized powdered graphite, then the nitre that will be sensitized powdered graphite, mass fraction is 15%
The ammoniacal liquor that the silver-colored solution of acid and mass fraction are 20% is 1 in mass ratio:2:2 mixing are placed in stir-activating 28min in beaker, obtain
Powdered graphite is activated, the grape that the mass fraction for continuing to add activation powdered graphite quality 3% into activation powdered graphite is 10%
Sugar juice, 1.5h is mixed at being 35 DEG C in temperature, filters off except filtrate, dries discharging, self-control is obtained and carries silver-colored powdered graphite;
Count in parts by weight, weigh 35 parts of modified epoxies respectively, 14 parts of self-controls carry silver-colored powdered graphite, 7 parts of poly terephthalic acid second
Diol ester and 5 parts of dimethicone mixing are placed in mixer, are stirred under conditions of temperature is 70 DEG C, rotating speed is 140r/min
25min, then 3 parts of ammonium persulfates and 2 parts of absolute ethyl alcohols are added, continue insulated and stirred 50min, obtain stirring slurry, by stirring slurry
Material is poured into double screw extruder, the extrusion forming in the case where temperature is 140 DEG C, pressure is 0.4MPa, cooling, traction winding, discharging,
Produce high-temperature-resistant antistatic type mould release membrance.
Example 3
It is 1 by volume:4:2 are placed in the mixing of deionized water, tetraethyl orthosilicate and absolute ethyl alcohol in beaker, are 45 DEG C in temperature
Lower stirring 12min, obtain stirring liquid, then the hydrochloric acid that the mass fraction of dropwise addition agitated liquid product 3% is 20% into beaker, continue to protect
Temperature mixes reaction 24min, obtains reaction solution, and reaction solution is put into sonic oscillation 30min in supersonic oscillations instrument, stood old
Change 2 days, discharging, obtain from preparing silicon collosol;It is 3 in mass ratio:1:1 by bisphenol A type epoxy resin, bimaleimide resin and
Cyanate ester resin mixes 20min, is heated to 160 DEG C, obtains hybrid resin, then by hybrid resin and from preparing silicon collosol
It is 2 in mass ratio:1, continue insulation and mix 60min, obtain modified epoxy;Weigh 32g graphite and grind mistake after 12min
80 mesh sieves, sieving powdered graphite is collected, is in mass ratio 4:1:2 by sieve powdered graphite, mass fraction be 30% hydrochloric acid and chlorine
Change stannous and mix reaction 8min, obtain being sensitized powdered graphite, then the nitric acid that powdered graphite will be sensitized, mass fraction is 15%
The ammoniacal liquor that silver-colored solution and mass fraction are 20% is 1 in mass ratio:2:2 mixing are placed in stir-activating 32min in beaker, are lived
Graphite powder, the glucose that the mass fraction for continuing to add activation powdered graphite quality 3% into activation powdered graphite is 10%
Solution, 2h is mixed at being 40 DEG C in temperature, filters off except filtrate, dries discharging, self-control is obtained and carries silver-colored powdered graphite;By weight
Number meter is measured, weighs 40 parts of modified epoxies respectively, 16 parts of self-controls carry silver-colored powdered graphite, 8 parts of polyethylene terephthalates
Ester and 6 parts of dimethicone mixing are placed in mixer, are stirred under conditions of temperature is 75 DEG C, rotating speed is 160r/min
30min, then 4 parts of ammonium persulfates and 3 parts of absolute ethyl alcohols are added, continue insulated and stirred 60min, obtain stirring slurry, by stirring slurry
Material is poured into double screw extruder, the extrusion forming in the case where temperature is 160 DEG C, pressure is 0.5MPa, cooling, traction winding, discharging,
Produce high-temperature-resistant antistatic type mould release membrance.
Comparative example
With the mould release membrance of company of Quanzhou City production as a comparison case
Mould release membrance in high-temperature-resistant antistatic type mould release membrance produced by the present invention and comparative example is detected, testing result such as table
Shown in 1:
1st, static electricity resistance is tested
Tested using sheet resistance tester, under the conditions of temperature is 22 DEG C, humidity is 55%, to the reality of the invention prepared
The inner side and outer side of example 1~3 and comparative example product is tested.
2nd, off-type force is tested
The example 1~3 and comparative example product prepared using the present invention is test piece, by the standard that size is 50mm × 175mm × 35mm
Band is attached in test piece, using testing roller(2kg load)Come and gone 2 times with 10mm/sec speed and index zone is pressed in test piece
Afterwards, test piece is clamped with 2 pieces of smooth metallic plates, both sides respectively add 70g/cm2Pressure, kept at a temperature of about 23 DEG C
After 20h, pressure is laid down, index zone is peeled off from the direction of 180 degree according to 300mm/min speed, test.It is anti-to each test piece
Repetition measurement tries 5 times, records average value.
Table 1
From the data in table 1, it can be seen that high-temperature-resistant antistatic type mould release membrance produced by the present invention, have that heat-resisting quantity is good, antistatic effect
The advantages that strong, hence it is evident that better than comparative example product.Therefore, there is wide prospect of the application.
Claims (5)
1. a kind of preparation method of high-temperature-resistant antistatic type mould release membrance, it is characterised in that specifically preparation process is:
(1)Deionized water, tetraethyl orthosilicate and absolute ethyl alcohol are mixed and is placed in beaker and stirs, obtains stirring liquid, then to beaker
The middle hydrochloric acid that agitated liquid product 3% is added dropwise, continues insulation and mixes reaction, obtain reaction solution, reaction solution is put into ultrasonic wave shakes
Sonic oscillation in instrument is swung, it is still aging, discharging, obtain from preparing silicon collosol;
(2)Bisphenol A type epoxy resin, bimaleimide resin and cyanate ester resin are mixed, heat temperature raising, mixed
Resin, then by hybrid resin and from preparing silicon collosol, continue insulation and mix, obtain modified epoxy;
(3)80 mesh sieves are crossed after weighing the grinding of 24~32g graphite, collect sieving powdered graphite, by sieving powdered graphite, hydrochloric acid and chlorine
Change stannous and mix reaction, obtain being sensitized powdered graphite, then sensitization powdered graphite, silver nitrate solution and ammoniacal liquor are mixed and are placed in
Stir-activating in beaker, obtain activating powdered graphite, continue to add activation powdered graphite quality 3% into activation powdered graphite
Glucose solution mixes, and filters off except filtrate, dries discharging, obtains self-control and carries silver-colored powdered graphite;
(4)Count in parts by weight, weigh 30~40 parts of modified epoxies respectively, 12~16 parts of self-controls carry silver-colored powdered graphite, 6~
8 parts of polyethylene terephthalates and 4~6 parts of dimethicone mixing are placed in mixer and stirred, then add 2~4 parts of mistakes
Ammonium sulfate and 1~3 part of absolute ethyl alcohol, continue insulated and stirred, obtain stirring slurry, stirring slurry is poured into double screw extruder
Extrusion forming, cooling, traction winding, discharging, produce high-temperature-resistant antistatic type mould release membrance.
A kind of 2. preparation method of high-temperature-resistant antistatic type mould release membrance according to claim 1, it is characterised in that:Step
(1)The volume ratio of described deionized water, tetraethyl orthosilicate and absolute ethyl alcohol is 1:4:2, whipping temp is 35~45 DEG C, stirring
Time is 10~12min, and the mass fraction of hydrochloric acid is 20%, and the continuation stirring reaction time is 18~24min, the sonic oscillation time
For 20~30min, digestion time is 1~2 day.
A kind of 3. preparation method of high-temperature-resistant antistatic type mould release membrance according to claim 1, it is characterised in that:Step
(2)The mass ratio of described bisphenol A type epoxy resin, bimaleimide resin and cyanate ester resin is 3:1:1, mixing time
For 16~20min, heat temperature raising temperature is 120~160 DEG C, and hybrid resin and the mass ratio from preparing silicon collosol are 2:1, continue to stir
It is 45~60min to mix the time.
A kind of 4. preparation method of high-temperature-resistant antistatic type mould release membrance according to claim 1, it is characterised in that:Step
(3)Described milling time is 10~12min, the quality of sieving powdered graphite, the hydrochloric acid that mass fraction is 30% and stannous chloride
Than for 4:1:2, the stirring reaction time is 6~8min, sensitization powdered graphite, the silver nitrate solution that mass fraction is 15% and quality
The mass ratio for the ammoniacal liquor that fraction is 20% is 1:2:2, the stir-activating time is 24~32min, and whipping temp is 30~40 DEG C, is stirred
It is 1~2h to mix the time.
A kind of 5. preparation method of high-temperature-resistant antistatic type mould release membrance according to claim 1, it is characterised in that:Step
(4)Described whipping temp is 65~75 DEG C, and speed of agitator is 120~160r/min, and mixing time is 20~30min, is continued
Mixing time is 45~60min, and extrusion temperature is 120~160 DEG C, and squeeze pressure is 0.3~0.5MPa.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711357925.1A CN107759981A (en) | 2017-12-17 | 2017-12-17 | A kind of preparation method of high-temperature-resistant antistatic type mould release membrance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711357925.1A CN107759981A (en) | 2017-12-17 | 2017-12-17 | A kind of preparation method of high-temperature-resistant antistatic type mould release membrance |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107759981A true CN107759981A (en) | 2018-03-06 |
Family
ID=61278103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711357925.1A Pending CN107759981A (en) | 2017-12-17 | 2017-12-17 | A kind of preparation method of high-temperature-resistant antistatic type mould release membrance |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107759981A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108659494A (en) * | 2018-05-15 | 2018-10-16 | 王召惠 | A kind of preparation method of nano modification polymer matrix screened film |
CN108795316A (en) * | 2018-05-18 | 2018-11-13 | 翟琳 | A kind of preparation method of flame-retardant and anti-static type release film |
CN109504327A (en) * | 2018-11-13 | 2019-03-22 | 烟台德邦科技有限公司 | Epoxy resin packaging conductive adhesive with high Tg and high reliability and preparation method thereof |
CN110239185A (en) * | 2019-06-14 | 2019-09-17 | 江苏双星彩塑新材料股份有限公司 | A kind of MLCC release film basement membrane and preparation method thereof |
-
2017
- 2017-12-17 CN CN201711357925.1A patent/CN107759981A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108659494A (en) * | 2018-05-15 | 2018-10-16 | 王召惠 | A kind of preparation method of nano modification polymer matrix screened film |
CN108795316A (en) * | 2018-05-18 | 2018-11-13 | 翟琳 | A kind of preparation method of flame-retardant and anti-static type release film |
CN109504327A (en) * | 2018-11-13 | 2019-03-22 | 烟台德邦科技有限公司 | Epoxy resin packaging conductive adhesive with high Tg and high reliability and preparation method thereof |
CN110239185A (en) * | 2019-06-14 | 2019-09-17 | 江苏双星彩塑新材料股份有限公司 | A kind of MLCC release film basement membrane and preparation method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107759981A (en) | A kind of preparation method of high-temperature-resistant antistatic type mould release membrance | |
CN103524768A (en) | Novel electronic-grade polyimide film with low linear expansion coefficient and production method thereof | |
CN110527122A (en) | A kind of ultralight PET release film of two-sided antistatic and preparation method thereof | |
CN103236286A (en) | Conductive sliver paste and preparation method thereof | |
CN110452633A (en) | A kind of anisotropy conductiving glue and its preparation method and application | |
JP2012067205A (en) | High heat radiation insulating resin sheet and method of manufacturing the same | |
CN105838310B (en) | A kind of preparation method of UV photocuring onion carbon/wicker copper conducting resinl | |
CN107732006A (en) | A kind of preparation method of the fexible film Magnetic Sensor based on nano material | |
US20210355349A1 (en) | Modified polyamic acid, preparation method thereof, and preparation method of composite film | |
CN103980832A (en) | Frame-sealing glue, packaging method of display panel and display panel | |
CN108153063A (en) | Liquid crystal display and preparation method thereof | |
CN104312471A (en) | Anisotropic conductive film containing benzoxazine and preparation method of anisotropic conductive film | |
CN102863913B (en) | Novel transparent conductive film and preparation method thereof | |
CN102827352B (en) | Thermal curing agents and preparation method thereof, sealed plastic box, display panel, display unit | |
CN109181592A (en) | A kind of preparation method of heat-conducting glue | |
CN109400875B (en) | Method for synthesizing polyamic acid resin by using 1, 3-bis [4- (3-aminophenoxy) benzoyl ] benzene | |
JPH04140718A (en) | Liquid crystal device | |
CN111499870A (en) | Boiling-resistant organic silicon pressure-sensitive adhesive tackifier and preparation method thereof | |
CN106753169A (en) | A kind of mono-component polyurethane diaphragm pressure sensitive adhesive and its synthesis technique | |
CN105802558A (en) | Novel defoaming process for epoxy resin AB adhesive | |
CN105086855B (en) | The adhesive method and flexible absorbing material of silicon rubber and object | |
CN106543695B (en) | Sensing composite film of three-dimensional motion capture instrument | |
CN109385248A (en) | A kind of environment protection type high-strength UV glue | |
Zhao et al. | Single‐Piece Membrane Supercapacitor with Exceptional Areal/Volumetric Capacitance via Double‐Face Print of Electrode/Electrolyte Active Ink | |
CN108795316A (en) | A kind of preparation method of flame-retardant and anti-static type release film |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180306 |